Live data from Hacker News

Understanding ProRAW

blog.halide.cam

61–70 of 114 posts

Re: Understanding ProRAW

#61
Nicely written. I'm not sure I'd have gone to "the dress is BLUE" but there is the question out there about how people want to discuss visual perception issues, in the context of a service delivering RGB (I mean, that many of the "what colour is this dress" consisted of poorly encoded representations of states of colour, using classic #RGB encoding, and were not actually well formulated visual perception examples suitable for use on an electronic display. Some of them literally encoded the two 'things' being compared differently, and did not actually stimulate a perception-response outcome: they were different colours as rendered)

Re: Understanding ProRAW

#62
post #6

If a mirrorless digital camera company ever made their software anywhere near as good as this, or if Apple ever brought their software expertise to a device with a full-frame format sensor and lens mount, they would absolutely dominate that market.

The iPhone 12 Pro is better than EVIL & DSLR cameras, and that mostly comes down to software.

Introducing ProRAW in a software update is already going to solidify that.

If digital cameras want to compete here is what they need to do:

- add live photos as a default

If photography enthusiasts wants to gatekeep:

- buy an older camera and stick with that... collectible.

If Apple wants to continue making their devices more appealing than dedicated cameras:

- Add live photos to portrait mode

Re: Understanding ProRAW

#63
post #58

Are there no sensors that natively see in colour without the filter matrix over the top?

The Foveon, which is used in Sigma cameras.

https://en.wikipedia.org/wiki/Foveon_X3_sensor

It hasn’t really gone anywhere. Partly because of technical issues of getting the signal out of the layers of photosites, but also, I think, because of good ol’ Moore’s Law. (Or Dennard scaling, whatever.) Back in the days of 3-megapixel cameras, it would have mattered a lot to have every photosite be a full RGB capture, but now that we’re at such high resolutions, you’re pretty much always downscaling to display the image, so you don’t need that per-pixel perfection.

And, you can do tricks like sensor shift, where you pop a camera on a tripod and use the image stabilization mechanism to shift the sensor subtly to create a very high resolution sample.

Re: Understanding ProRAW

#64
"RAW data is usually stored in the DNG file format, which stands for Digital Negative. Some camera makers have their own formats, but those companies are jerks."

I disagree with the second part of this quote. The major players (Sony, Canon, Nikon) have their own file formats which reflect the choices their engineers made in deciding how to record the raw sensor information at the time of the exposure. Theoretically you can make the case that one of them did it better than the others but since the applications photographers use to process RAW images are given the ability to read these RAW formats they aren't being jerks just for wanting to express their engineering genius in their own way. If, for example, Nikon REFUSED to give Adobe and others the ability to decode their raw NEF files, insisting you have to buy a piece of Nikon software in order to view and transform the raw images from your camera, then I would agree they are jerks. But just because a camera maker's engineers decided that (for reasons I don't know) the open DNG format won't deliver the best quality to their customers doesn't make them jerks.

Otherwise this is a pretty good article, even if it's little more than an educational promotion for Halide's camera app.

Re: Understanding ProRAW

#65
post #13

I find people misunderstand what RAW is about and what and who it is for. If you think your pictures are better, you are deluding yourself the same way audiophiles moan about qualities of their high end, thousand dollar per feet audio cables. I use RAW files and full manual because I have an actual workflow where I shoot a bunch of photos in similar setting and want to be able to create Lightroom preset and apply to…

> try to learn zone system. Learn to evaluate highlights and shadows and adjust your exposure without any meter. Use it to make pictures you want in lighting with extremely high dynamic range

This is pretty hard to do with the stock iphone camera app.

Re: Understanding ProRAW

#67
post #64

"RAW data is usually stored in the DNG file format, which stands for Digital Negative. Some camera makers have their own formats, but those companies are jerks." I disagree with the second part of this quote. The major players (Sony, Canon, Nikon) have their own file formats which reflect the choices their engineers made in deciding how to record the raw sensor information at the time of the exposure. Theoretically y…

> The major players (Sony, Canon, Nikon) have their own file formats which reflect the choices their engineers made in deciding how to record the raw sensor information at the time of the exposure.

Reflect how, and why couldn't that data be stored in a DNG?

Re: Understanding ProRAW

#68
post #13

I find people misunderstand what RAW is about and what and who it is for. If you think your pictures are better, you are deluding yourself the same way audiophiles moan about qualities of their high end, thousand dollar per feet audio cables. I use RAW files and full manual because I have an actual workflow where I shoot a bunch of photos in similar setting and want to be able to create Lightroom preset and apply to…

Don't be so snobbish. Mitigating color and exposure problems absolutely will lead to better pictures.

Re: Understanding ProRAW

#69

Earlier quoted context omitted.

Are you referring to confusion in the article, or among users? Everyone spells it with all caps. Browse DPReview for a bit. "RAW" is just the convention, even though it makes no sense.

It makes a lot more sense if you say it as upper case every time you say it out loud. "I shoot in raw format" vs "I shoot in RAW format!!" It makes the conversation more interesting.

[deleted]

Re: Understanding ProRAW

#70
post #64

"RAW data is usually stored in the DNG file format, which stands for Digital Negative. Some camera makers have their own formats, but those companies are jerks." I disagree with the second part of this quote. The major players (Sony, Canon, Nikon) have their own file formats which reflect the choices their engineers made in deciding how to record the raw sensor information at the time of the exposure. Theoretically y…

> The major players (Sony, Canon, Nikon) have their own file formats which reflect the choices their engineers made in deciding how to record the raw sensor information at the time of the exposure. Reflect how, and why couldn't that data be stored in a DNG?

The goal of DNG was long-term archival and maximum compatibility; Nikon NEF, Canon CRW, and Sony ARW file formats are meant to capture the point-in-time exposure information. Some of that point in time information involves the decisions the camera made about the exposure (Active D Light for Nikon... I'm sure Sony and Canon have their own settings they are saving) that matter for recording metadata about the image capture that go well beyond just the image itself for the purposes of long-term archival.
Post reply on HN